Finding the Fourth Proportional to 4,020,106.68, 5,547,959.82 and 2,278,114.20
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Solution
The fourth proportional to 4,020,106.68, 5,547,959.82 and 2,278,114.20 is: 3,143,918.07
Step by Step Solution
- Step 1: Write the proportion equation
4,020,106.68 : 5,547,959.82 = 2,278,114.20 : x - Step 2: Convert to fraction form
4,020,106.68/5,547,959.82 = 2,278,114.20/x - Step 3: Cross multiply
4,020,106.68x = 5,547,959.82 × 2,278,114.20 - Step 4: Simplify right side
4,020,106.68x = 12,638,886,046,971.45 - Step 5: Solve for x
x = 12,638,886,046,971.45/4,020,106.68 - Step 6: Final answer
x = 3,143,918.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.